Ballard Spahr's Denver office has grown by five with the addition of ANDREW PETRIE and SARAH WALLACE as partners, LISA LEE as of counsel, and two senior associates to its commercial litigation practice. All the attorneys came from Featherstone Petrie DeSisto.

JAKE CHO has joined Blank Rome as of counsel in its New York branch, where he will serve in the firm's financial services group. Cho previously worked as a senior director and analytical manager for Standard & Poor's structured credit group.

DLA Piper has hired MICHAEL HORNSTEIN as a partner in its corporate and finance practice. Hornstein had previously worked at the Federal Energy Regulatory Commission as of counsel. He will be based out of DLA's office in Washington, D.C.

MARCUS SIMON has returned to Dorsey & Whitney as a partner, where he will launch a patent practice in the firm's Salt Lake City office. Simon was previously a shareholder at Workman Nydegger. Before that, he had been with Dorsey & Whitney between 2004 and 2006.

Greenberg Traurig has hired NANCY AYALA as of counsel in its Las Vegas office, where she will work in the firm's intellectual property practice and focus on entertainment matters. She used to work at Ayala & Tao, formerly Ayala & Associates.

Jones Day has expanded its Shanghai office with ROSS KEENE and YANG XU, both of whom will work for the firm as of counsel. Keene came from Allens and will now work for Jones Day's mergers and acquisitions department, while Xu moved from Simcere Pharmaceutical Group and will become a member of Jones Day's intellectual property practice.

K&L Gates has welcomed a partner to its Raleigh office. DAVID LINDSAY has joined the firm's labor, employment, and workplace safety practice. He has moved over from Kilpatrick Townsend & Stockton.

MICHELE ALEXANDER has joined Lowenstein Sandler as a partner in its business tax counseling and structuring practice. She joins from Wachtell, Lipton, Rosen & Katz, where she had worked as counsel since 2006. Alexander will concentrate on corporate and business tax issues involving mergers and acquisitions and the structure of transactions involving private equity and hedge funds. She will work from the firm's New York office.

DAVID WORONOV has been hired as a partner at McCarter & English. He will be a member of the firm's corporate, securities, and financial institutions practice in its Boston office. Before his move, Woronov worked for Posternak Blankstein & Lund.

Milbank, Tweed, Hadley & McCloy has added a new partner to its U.S. derivatives practice. JOHN WILLIAMS will now work out of Milbank's New York office concentrating on transactional and regulatory work related to derivatives. He formerly worked at Allen & Overy.

Pepper Hamilton is launching a health care practice on the West Coast with the hire in Los Angeles of MARK KADZIELSKI, who will become the firmwide head of the health care industry group. He joins from Norton Rose Fulbright with four associates.

ALLAN LOW has been made a partner in Perkins Coie's San Francisco office, where he will work in the firm's real estate practice. He was previously a partner at Nixon Peabody.

RIAZ KARAMALI has moved to Pillsbury Winthrop Shaw Pittman from Sheppard Mullin Richter & Hampton. He will work in the firm's San Francisco office in its corporate and securities technology practice. He was hired largely for his experience assisting start-ups, particularly in the video game space.

ALEXANDER BARTON will now work for Polsinelli's real estate development practice. Based in the firm's Denver office, he will primarily focus on commercial real estate transactions. He moved over from Ryley Carlock & Applewhite.

A chief advertising counsel for American Express, PO YI, has gone over to Venable. Yi will now work for Venable's advertising and media practice group as a partner, based in New York.

The Churn is compiled from law firm releases and announcements. Moves based on our own reporting will note this. Please send all announcements and news releases to thechurn@alm.com.